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Analog Devices - CDMA Power Management System

Numéro de référence ADP3510ARU
Description CDMA Power Management System
Fabricant Analog Devices 
Logo Analog Devices 





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ADP3510ARU fiche technique
a
CDMA Power Management System
FEATURES
Handles All CDMA Baseband Power Management
Six LDOs Optimized for Specific CDMA Subsystems
Li-Ion and NiMH Battery Charge Function
Ambient Temperature: ؊20؇C to +85؇C
TSSOP 28-Lead Package
Optimized for LSI Logic Baseband Chipset
APPLICATIONS
CDMA Handsets
GENERAL DESCRIPTION
The ADP3510 is a multifunction power system chip optimized for
CDMA handset power management. It contains six specialized
LDOs, one to power each of the critical CDMA subblocks.
Sophisticated controls are available for power-up during battery
charging, keypad interface, and RTC alarm. If a Li-Ion battery
is being charged, the charge circuit maintains low current
charging during the initial charge phase and provides an end of
charge (EOC) signal when the cell has been fully charged.
The ADP3510 is specified over the temperature range of –20C to
+85C and is available in a narrow body TSSOP 28-Lead package.
ADP3510
FUNCTIONAL BLOCK DIAGRAM
VBAT VBAT2
PWRONKEY
ROWX
PWRONIN
ALARM
PDCAP
TCXOEN
RESCAP
CHRDET
EOC
CHGEN
GATEIN
BATSNS
ISENSE
GATEDR
CHRIN
POWER-UP
SEQUENCING
AND
PROTECTION
LOGIC
RTC
VIO
LDO
DIGITAL
CORE LDO
ANALOG
LDO
TCXO
LDO
MEMORY
LDO
REF
BUFFER
BATTERY
CHARGE
CONTROLLER
BATTERY
VOLTAGE
DIVIDER
ADP3510
VTRC
VIO
VCORE
VAN
VTCXO
VMEM
REFOUT
RESET
MVBAT
DGND
AGND
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002

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